Remove import of tables.py from data load

This fixes Issue #62.  tables.py was being imported before the tables were populated by table_check, resulting in top level table references being defined as None and throwing errors further downstream. This included the bad API call to /api/departments.

ntp/data/aggregate.py

@@ -1,6 +1,5 @@
 from include.rethinkdb.vars import NAME
 from include.rethinkdb.init_db import RawDb, ParsedDb
-from include.rethinkdb.tables import RdbChiSquare, RdbChiMerged
 from include.rethinkdb.functions import aggregates, tbl_dict
 from include.sanitize.vars import CLEAN_SALARY, ETHNICITY, GENDER, EMPLOYEES
 from include.aggregate.vars import INCOME_DISTRIBUTIONS, EXPECTED, KEYS
@@ -46,14 +45,3 @@ def run():
 
             CurrentParsedTableObject.replace(lambda row: row.without(EMPLOYEES)).run()
 
-'''
-            aggs = aggregates(CurrentParsedTableObject)
-            chi_data = expected_and_observed(aggs, EXPECTED, KEYS)
-            chi_parsed = chi_parser(chi_data, KEYS)
-
-            for key in KEYS:
-                for bracket in chi_parsed[key]:
-                    bracket.update({"axis": tbl_name, "demographic": key})
-                    RdbChiSquare.insert(bracket).run()
-
-'''

ntp/run_server.py

@@ -3,6 +3,10 @@
 
 if __name__ == "__main__":
 
+	# Make sure to not import anything from data.include.rethinkdb.tables
+	# inside of table_check
+	# tables.py has initialization that rely on a populated database
+	# to define the vars RdbMostRecent, RdbChiSquare, and RdbChiMerged correctly
     table_check()
 
     from app import app